Types of Functions: Definition & Examples

Types of Functions

The types of functions are determined by the domain, range, and function expression. Functions are primarily defined by the expression they are written in. Furthermore, the relationship between the elements of the domain set and the range set also accounts for the type of function. The classification of functions makes it easier to understand and … Read more

Lines, Segments, and Rays: Definition and Difference

Lines, Segments, and Rays

Lines, Segments, and Rays: Although we all identify intuitively what a line is, it is actually difficult to give a good mathematical definition. Cruelly, we can say that a line is an infinitely thin, infinitely long collection of points extending in two opposite directions. When we form lines in geometry, we use an arrow at each … Read more

Converse Statement: Definition and Explanation

Converse Statement

The three most common ways to change a conditional statement are by taking its inverse, its converse statement, or its contrapositive. In each case, either the hypothesis or the conclusion swap places, or a statement is replaced by its negation. The Inverse Statement A conditional statement is reversed by replacing the hypothesis and the conclusion … Read more

Rounding Decimals: Methods, Examples, and Solutions

Rounding Decimals: Utilizing a calculator often gives a long string of digits. For instance, 1 ÷ 3 might give .333333333. But very often, for practical goals, this level of accuracy is too precise to be useful. You try measuring .33333333 meters! Decimal numbers can be rounded quite like whole numbers. For example, 0.33333333 is nearer … Read more

Place Value: Decimals Comparisons and Hundredths Place in Decimals

Place Value: Decimals

There are terms that describe place value for decimals in the same way that those terms describe place value for whole numbers, such as tenths, hundredths, thousandths, ten thousandths, hundred thousandths, millionths, etc. Beginning with the first numeral after the decimal point, these terms are used from left to right. In the number 0.1234, there … Read more